General description Bluetooth 5.0 Transmitter Receiver allows you to wirelessly transfer audio from your TV, PC, or other devices to your headphones. This versatile two-in-one device can also function as a receiver, connecting to wired speakers, home theaters, and more. Technical specifications Output interface: 3.5mm audio + optical fiber Model: -380 Bluetooth protocol: AVRCP, A2DP Bluetooth version: 5.0 Battery capacity: 3.7V/300mAh Multi-point connection: Support one-to-two Forward transmission distance: 10 meters Frequency range: 2.402GHz-2.480GHz Product size: 64.58 x 64.58 x 18mm Color: Black Material: ABS Usage The ZF380 utilizes low latency technology to minimize Bluetooth latency, ensuring perfectly synchronized, high-quality sound. The LED indicator allows users to easily identify the connection mode, enhancing convenience during use. Other information Built-in 300mAh battery provides 7-8 hours of working time after a 1.5-hour charge. Note: Light reflection and different